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記述言語：英語  

DOI： 10.1186/s40478-025-01945-w

PubMed

記述言語：英語   掲載種別：研究論文（学術雑誌）   出版者・発行元：World Neurosurgery  

Surgical interventions for arachnoid cysts and glioependymal cysts primarily focus on cyst decompression and establishing communication with cerebrospinal fluid spaces. However, a standardized surgical strategy for symptomatic convexity cysts lacking surrounding cerebrospinal fluid space is still lacking due to the limited number of cases. This systematic review aims to evaluate surgical interventions for symptomatic convexity cysts and proposes a safe and effective treatment approach we have developed. A systematic review of the literature was conducted following Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. Surgical techniques were categorized into cystoperitoneal shunt, cyst excision, cyst fenestration, cyst ventriculostomy, and several uniquely modified methods. Using a method different from these previous reports, we performed endoscopic cystoventricular stenting via burr hole in 3 cases of convexity cysts. While traditional methods have proven effective, cystoperitoneal shunt may lead to malfunction, infection, and subdural hematoma; wall excision is invasive and increases morbidity risks. Fenestration and cystoventriculostomy have also reported cases of recurrence. Other methods also pose issues, including off-label use of instruments and inadequate consideration for removal. The method we performed for placing the stent catheter with multiple side holes demonstrated long-term effectiveness. Furthermore, the surgery was conducted with the patient fully awake, and the use of electrical stimulation mapping enabled preservation of higher neurocognitive functions, including language, working memory, and spatial cognition, at the puncture site. This novel approach offers advantages such as minimally invasive procedure, preservation of safe brain function, and long-term patency. Further studies are warranted to validate these findings and improve surgical strategies for convexity cysts.

DOI： 10.1016/j.wneu.2024.10.031

Web of Science

Scopus

PubMed

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担当区分：筆頭著者,　責任著者   記述言語：英語   掲載種別：研究論文（学術雑誌）   出版者・発行元：Acta Neurochirurgica  

Background: Treating meningeal tumours invading the large dural venous sinuses is a subject of debate regarding the approach for removing the intra-sinus components. Additionally, directly observing the invasion site of tumours invading the lateral wall of the sinus is difficult. Method: We describe our exo- and endoscopic two-step approach (EETA): an exoscope is used to remove the extra-sinus component, while an endoscope is used to observe the invaded lateral wall and remove the intra-sinus component. Conclusion: EETA can be a viable option for treating meningeal tumours invading the venous sinus owing to its high resection rate and low invasiveness.

DOI： 10.1007/s00701-024-06298-2

Web of Science

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担当区分：筆頭著者,　責任著者   記述言語：英語   掲載種別：研究論文（学術雑誌）   出版者・発行元：Acta Neurochirurgica  

Background: For a minimally invasive treatment approach to the anteromedial part of the anterior cranial fossa (ACF), a small incision and craniotomy of the posterolateral part of the ACF are preferable. Method: We described the concept and technique of suprapterional keyhole approach (SPKA), which uses an exoscope and endoscope to treat ACF lesions. Conclusion: The SPKA enables ACF observation from the lateral direction; the endoscope’s extended viewing angles enable the observation of the anteromedial part of the ACF, including the bilateral olfactory groove. Facial skin and large scalp incisions are avoided, making this approach efficient for ACF lesions.

DOI： 10.1007/s00701-024-06202-y

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その他リンク： https://link.springer.com/article/10.1007/s00701-024-06202-y/fulltext.html

担当区分：筆頭著者,　責任著者   記述言語：英語   掲載種別：研究論文（学術雑誌）  

BACKGROUND: The endoscopic transorbital approach provides a direct access to the medial temporal lobe (MTL). However, when excising a highly vascular tumour, a wider access route that enables the concurrent use of standard neurosurgical instruments with both hands is preferable. METHOD: We described the concept and technique of the lateral orbital wall approach (LOWA), which comprises orbitotomy and mini-craniotomy to treat MTL lesions using an exoscope and endoscope. CONCLUSION: The LOWA provides a safe and natural surgical corridor to the MTL and enables 2- or 3-hand surgery. Hence, LOWA can potentially improve safety and efficiency to treat MTL lesions.

DOI： 10.1007/s00701-024-06011-3

PubMed

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J-GLOBAL

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J-GLOBAL

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J-GLOBAL

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J-GLOBAL

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開催年月日： 2024年11月

会議種別：口頭発表（招待・特別）  

国名：日本国  

開催年月日： 2024年10月

会議種別：口頭発表（一般）  

開催年月日： 2024年10月

会議種別：シンポジウム・ワークショップ パネル（公募）  

開催年月日： 2024年9月

記述言語：日本語   会議種別：公開講演，セミナー，チュートリアル，講習，講義等  

国名：日本国  

開催年月日： 2024年7月

会議種別：口頭発表（一般）  

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